changed rm images example to rmi
changed rm images example to rmi

updated to include both commands

Signed-off-by: Victoria Bialas <99cd2b71a4b4f6883e7934ce9590288e2952433f@docker.com>

shin-/docker.github.io,londoncalling/docker.github.io,bdwill/docker.github.io,shubheksha/docker.github.io,JimGalasyn/docker.github.io,londoncalling/docker.github.io,JimGalasyn/docker.github.io,bdwill/docker.github.io,thaJeztah/docker.github.io,docker-zh/docker.github.io,johnstep/docker.github.io,shubheksha/docker.github.io,joaofnfernandes/docker.github.io,docker/docker.github.io,JimGalasyn/docker.github.io,JimGalasyn/docker.github.io,JimGalasyn/docker.github.io,phiroict/docker,phiroict/docker,thaJeztah/docker.github.io,docker-zh/docker.github.io,shin-/docker.github.io,bdwill/docker.github.io,shubheksha/docker.github.io,anweiss/docker.github.io,johnstep/docker.github.io,docker/docker.github.io,johnstep/docker.github.io,anweiss/docker.github.io,joeuo/docker.github.io,johnstep/docker.github.io,anweiss/docker.github.io,thaJeztah/docker.github.io,phiroict/docker,docker/docker.github.io,anweiss/docker.github.io,joaofnfernandes/docker.github.io,joaofnfernandes/docker.github.io,shin-/docker.github.io,thaJeztah/docker.github.io,bdwill/docker.github.io,shin-/docker.github.io,shubheksha/docker.github.io,docker-zh/docker.github.io,joeuo/docker.github.io,docker-zh/docker.github.io,joaofnfernandes/docker.github.io,docker/docker.github.io,docker-zh/docker.github.io,phiroict/docker,joeuo/docker.github.io,shin-/docker.github.io,shubheksha/docker.github.io,johnstep/docker.github.io,phiroict/docker,joaofnfernandes/docker.github.io,joeuo/docker.github.io,anweiss/docker.github.io,docker/docker.github.io,londoncalling/docker.github.io,joeuo/docker.github.io,londoncalling/docker.github.io,londoncalling/docker.github.io,bdwill/docker.github.io,thaJeztah/docker.github.io